Anhydrite and Forsterite Physical Properties

Anhydrite

Forsterite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.98

3.23-3.26

1.5 Fracture

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Perfect on {010} imperfect on {100}

1.7 Mohs Hardness

3.5

6.5-7

1.8 Chemical Composition

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Anhydrite and Forsterite Chemical Formula

While comparing Anhydrite and Forsterite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Anhydrite and Forsterite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Anhydrite and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.